Read the sentence from “Two Great Scientists.” He questioned scientific concepts—he only trusted them after he tried the experiments himself.

What is another word for concepts as it is used in the sentence?

A.
actions

B.
ideas

C.
jobs

D.
papers

A.actions

Explanation:

because he only trusted the scientific concepts only after he tried them himself its a action so its A

abraham lincoln, according to anyone who was connected with agriculture, represented the worst of northern politicians. shortly after lincoln was elected, south carolina seceded from the union. they along with other southern states, retained their anger. in a way, it was their own fault: the democrats were split in the south. some wanted slavery to be extended in other states that were about to join the union and some didn't want it badly enough. lincoln had a solid backing from his party: the republicans were united in not wanting slavery to be expanded.

trade in silk, spices, and precious metals.

answer first choice